struct fd_bo * fd_bo_from_name(struct fd_device *dev, uint32_t name)
{
struct drm_gem_open req = {
.name = name,
};
struct fd_bo *bo;
pthread_mutex_lock(&table_lock);
/* check name table first, to see if bo is already open: */
bo = lookup_bo(dev->name_table, name);
if (bo)
goto out_unlock;
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
ERROR_MSG("gem-open failed: %s", strerror(errno));
goto out_unlock;
}
bo = lookup_bo(dev->handle_table, req.handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, req.size, req.handle);
if (bo)
set_name(bo, name);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
/* allocate a new buffer object */
static struct omap_bo * omap_bo_new_impl(struct omap_device *dev,
union omap_gem_size size, uint32_t flags)
{
struct omap_bo *bo = NULL;
struct drm_omap_gem_new req = {
.size = size,
.flags = flags,
};
if (size.bytes == 0) {
goto fail;
}
if (drmCommandWriteRead(dev->fd, DRM_OMAP_GEM_NEW, &req, sizeof(req))) {
goto fail;
}
pthread_mutex_lock(&table_lock);
bo = bo_from_handle(dev, req.handle);
pthread_mutex_unlock(&table_lock);
if (flags & OMAP_BO_TILED) {
bo->size = round_up(size.tiled.width, PAGE_SIZE) * size.tiled.height;
} else {
bo->size = size.bytes;
}
return bo;
fail:
free(bo);
return NULL;
}
struct fd_bo * fd_bo_new(struct fd_device *dev,
uint32_t size, uint32_t flags)
{
struct fd_bo *bo = NULL;
struct fd_bo_bucket *bucket;
uint32_t handle;
int ret;
size = ALIGN(size, 4096);
bucket = get_bucket(dev, size);
/* see if we can be green and recycle: */
if (bucket) {
size = bucket->size;
bo = find_in_bucket(dev, bucket, flags);
if (bo) {
atomic_set(&bo->refcnt, 1);
fd_device_ref(bo->dev);
return bo;
}
}
ret = dev->funcs->bo_new_handle(dev, size, flags, &handle);
if (ret)
return NULL;
pthread_mutex_lock(&table_lock);
bo = bo_from_handle(dev, size, handle);
bo->bo_reuse = 1;
pthread_mutex_unlock(&table_lock);
return bo;
}
struct fd_bo *
fd_bo_from_dmabuf(struct fd_device *dev, int fd)
{
int ret, size;
uint32_t handle;
struct fd_bo *bo;
pthread_mutex_lock(&table_lock);
ret = drmPrimeFDToHandle(dev->fd, fd, &handle);
if (ret) {
return NULL;
}
bo = lookup_bo(dev->handle_table, handle);
if (bo)
goto out_unlock;
/* lseek() to get bo size */
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_CUR);
bo = bo_from_handle(dev, size, handle);
VG_BO_ALLOC(bo);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
struct fd_bo *fd_bo_from_handle(struct fd_device *dev,
uint32_t handle, uint32_t size)
{
struct fd_bo *bo = NULL;
pthread_mutex_lock(&table_lock);
bo = bo_from_handle(dev, size, handle);
pthread_mutex_unlock(&table_lock);
return bo;
}
drm_public struct fd_bo *
fd_bo_from_handle(struct fd_device *dev, uint32_t handle, uint32_t size)
{
struct fd_bo *bo = NULL;
pthread_mutex_lock(&table_lock);
bo = lookup_bo(dev->handle_table, handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, size, handle);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
/* allocate a new (un-tiled) buffer object */
struct etna_bo *etna_bo_new(struct etna_device *dev,
uint32_t size, uint32_t flags)
{
struct etna_bo *bo = NULL;
struct drm_vivante_gem_new req = {
.size = size,
.flags = MSM_BO_WC, // TODO figure out proper flags..
};
int ret;
ret = drmCommandWriteRead(dev->fd, DRM_VIVANTE_GEM_NEW,
&req, sizeof(req));
if (ret)
return NULL;
pthread_mutex_lock(&table_lock);
bo = bo_from_handle(dev, size, req.handle);
pthread_mutex_unlock(&table_lock);
return bo;
}
struct fd_bo *
fd_bo_new(struct fd_device *dev, uint32_t size, uint32_t flags)
{
struct fd_bo *bo = NULL;
uint32_t handle;
int ret;
bo = fd_bo_cache_alloc(&dev->bo_cache, &size, flags);
if (bo)
return bo;
ret = dev->funcs->bo_new_handle(dev, size, flags, &handle);
if (ret)
return NULL;
pthread_mutex_lock(&table_lock);
bo = bo_from_handle(dev, size, handle);
bo->bo_reuse = TRUE;
pthread_mutex_unlock(&table_lock);
VG_BO_ALLOC(bo);
return bo;
}
/* get buffer info */
static int get_buffer_info(struct etna_bo *bo)
{
struct drm_vivante_gem_info req = {
.handle = bo->handle,
};
int ret = drmCommandWriteRead(bo->dev->fd, DRM_VIVANTE_GEM_INFO,
&req, sizeof(req));
if (ret) {
return ret;
}
/* really all we need for now is mmap offset */
bo->offset = req.offset;
return 0;
}
/* import a buffer object from DRI2 name */
struct etna_bo * etna_bo_from_name(struct etna_device *dev, uint32_t name)
{
struct drm_gem_open req = {
.name = name,
};
struct etna_bo *bo;
pthread_mutex_lock(&table_lock);
/* check name table first, to see if bo is already open: */
bo = lookup_bo(dev, req.handle);
if (bo)
goto out_unlock;
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
ERROR_MSG("gem-open failed: %s", strerror(errno));
goto out_unlock;
}
bo = lookup_bo(dev, req.handle);
if (bo)
goto out_unlock;
bo = bo_from_handle(dev, req.size, req.handle);
if (bo)
set_name(bo, name);
out_unlock:
pthread_mutex_unlock(&table_lock);
return bo;
}
/* import a buffer from dmabuf fd, does not take ownership of the
* fd so caller should close() the fd when it is otherwise done
* with it (even if it is still using the 'struct etna_bo *')
*/
struct etna_bo * etna_bo_from_dmabuf(struct etna_device *dev, int fd)
{
#if 0
struct etna_bo *bo = NULL;
struct drm_prime_handle req = {
.fd = fd,
};
int ret;
pthread_mutex_lock(&table_lock);
ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
if (ret) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
#endif
return NULL;
}
/* destroy a buffer object */
void etna_bo_del(struct etna_bo *bo)
{
if (!bo)
return;
if (!atomic_dec_and_test(&bo->refcnt))
return;
if (bo->map)
munmap(bo->map, bo->size);
if (bo->fd)
close(bo->fd);
if (bo->handle) {
struct drm_gem_close req = {
.handle = bo->handle,
};
pthread_mutex_lock(&table_lock);
drmHashDelete(bo->dev->handle_table, bo->handle);
drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
pthread_mutex_unlock(&table_lock);
}
etna_device_del(bo->dev);
free(bo);
}
/* get the global flink/DRI2 buffer name */
int etna_bo_get_name(struct etna_bo *bo, uint32_t *name)
{
if (!bo->name) {
struct drm_gem_flink req = {
.handle = bo->handle,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
if (ret) {
return ret;
}
bo->name = req.name;
}
*name = bo->name;
return 0;
}
uint32_t etna_bo_handle(struct etna_bo *bo)
{
return bo->handle;
}
/* caller owns the dmabuf fd that is returned and is responsible
* to close() it when done
*/
int etna_bo_dmabuf(struct etna_bo *bo)
{
if (!bo->fd) {
struct drm_prime_handle req = {
.handle = bo->handle,
.flags = DRM_CLOEXEC,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
if (ret) {
return ret;
}
bo->fd = req.fd;
}
return dup(bo->fd);
}
uint32_t etna_bo_size(struct etna_bo *bo)
{
if (!bo->size) {
get_buffer_info(bo);
}
return bo->size;
}
void * etna_bo_map(struct etna_bo *bo)
{
if (!bo->map) {
if (!bo->offset) {
get_buffer_info(bo);
}
bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
MAP_SHARED, bo->dev->fd, bo->offset);
if (bo->map == MAP_FAILED) {
bo->map = NULL;
}
}
return bo->map;
}
int etna_bo_cpu_prep(struct etna_bo *bo, uint32_t op)
{
return 0;
}
void etna_bo_cpu_fini(struct etna_bo *bo)
{
}
/* get buffer info */
static int get_buffer_info(struct omap_bo *bo)
{
struct drm_omap_gem_info req = {
.handle = bo->handle,
};
int ret = drmCommandWriteRead(bo->dev->fd, DRM_OMAP_GEM_INFO,
&req, sizeof(req));
if (ret) {
return ret;
}
/* really all we need for now is mmap offset */
bo->offset = req.offset;
bo->size = req.size;
return 0;
}
/* import a buffer object from DRI2 name */
drm_public struct omap_bo *
omap_bo_from_name(struct omap_device *dev, uint32_t name)
{
struct omap_bo *bo = NULL;
struct drm_gem_open req = {
.name = name,
};
pthread_mutex_lock(&table_lock);
if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
bo->name = name;
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
return NULL;
}
/* import a buffer from dmabuf fd, does not take ownership of the
* fd so caller should close() the fd when it is otherwise done
* with it (even if it is still using the 'struct omap_bo *')
*/
drm_public struct omap_bo *
omap_bo_from_dmabuf(struct omap_device *dev, int fd)
{
struct omap_bo *bo = NULL;
struct drm_prime_handle req = {
.fd = fd,
};
int ret;
pthread_mutex_lock(&table_lock);
ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
if (ret) {
goto fail;
}
bo = lookup_bo(dev, req.handle);
if (!bo) {
bo = bo_from_handle(dev, req.handle);
}
pthread_mutex_unlock(&table_lock);
return bo;
fail:
pthread_mutex_unlock(&table_lock);
free(bo);
return NULL;
}
/* destroy a buffer object */
drm_public void omap_bo_del(struct omap_bo *bo)
{
if (!bo) {
return;
}
if (!atomic_dec_and_test(&bo->refcnt))
return;
if (bo->map) {
munmap(bo->map, bo->size);
}
if (bo->fd >= 0) {
close(bo->fd);
}
if (bo->handle) {
struct drm_gem_close req = {
.handle = bo->handle,
};
pthread_mutex_lock(&table_lock);
drmHashDelete(bo->dev->handle_table, bo->handle);
drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
pthread_mutex_unlock(&table_lock);
}
omap_device_del(bo->dev);
free(bo);
}
/* get the global flink/DRI2 buffer name */
drm_public int omap_bo_get_name(struct omap_bo *bo, uint32_t *name)
{
if (!bo->name) {
struct drm_gem_flink req = {
.handle = bo->handle,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
if (ret) {
return ret;
}
bo->name = req.name;
}
*name = bo->name;
return 0;
}
drm_public uint32_t omap_bo_handle(struct omap_bo *bo)
{
return bo->handle;
}
/* caller owns the dmabuf fd that is returned and is responsible
* to close() it when done
*/
drm_public int omap_bo_dmabuf(struct omap_bo *bo)
{
if (bo->fd < 0) {
struct drm_prime_handle req = {
.handle = bo->handle,
.flags = DRM_CLOEXEC,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
if (ret) {
return ret;
}
bo->fd = req.fd;
}
return dup(bo->fd);
}
drm_public uint32_t omap_bo_size(struct omap_bo *bo)
{
if (!bo->size) {
get_buffer_info(bo);
}
return bo->size;
}
drm_public void *omap_bo_map(struct omap_bo *bo)
{
if (!bo->map) {
if (!bo->offset) {
get_buffer_info(bo);
}
bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
MAP_SHARED, bo->dev->fd, bo->offset);
if (bo->map == MAP_FAILED) {
bo->map = NULL;
}
}
return bo->map;
}
drm_public int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op)
{
struct drm_omap_gem_cpu_prep req = {
.handle = bo->handle,
.op = op,
};
return drmCommandWrite(bo->dev->fd,
DRM_OMAP_GEM_CPU_PREP, &req, sizeof(req));
}
drm_public int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op)
{
struct drm_omap_gem_cpu_fini req = {
.handle = bo->handle,
.op = op,
.nregions = 0,
};
return drmCommandWrite(bo->dev->fd,
DRM_OMAP_GEM_CPU_FINI, &req, sizeof(req));
}
